NAME:
  occbuildpsf
 PURPOSE:   (one line only)
  Build a stacked PSF for images in an occultation dataset
 DESCRIPTION:
 CATEGORY:
  Occultations
 CALLING SEQUENCE:
  occbuildpsf
 INPUTS:
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
  NODBUPDATE - Flag, if set suppressess saving information to the database
  HIDDEN  - Flag, if set let's the program use the Z buffer instead of
               and active X display.  Most effective for working over a
               slow network and you don't really need to see what it's doing.
 OUTPUTS:
 KEYWORD OUTPUT PARAMETERS:
 CONFIGURATION:
   File: config.ini
   [global]
     event   - string with short ID name of event (ex: OR20200914)
   [ddir]   - section to list potential root directories to find data
     XXX - 
       XXX is a unique string (eg., D01)
        is a directory path
       for additional details see getddir.pro
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  Written by Marc W. Buie, Southwest Research Institute, 2020/09/24
  2022/01/22, MWB, add HIDDEN keyword